DS1302给LCD1602显示数据，LCD除了20外其余均显示0，调试无果求解答！

2017-3-18 14:51:12 2515 LCD1602 DS1302

0 函数如下： main.c #include #include *it DS1302_CE=P3^5; it DS1302_CK=P3^6; *it DS1302_IO=P3^4; unsigned char T0RH=0;T0RL=0; bit flag200ms=0; unsigned char LED[]= {0x3f,0x06,0x5B,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71}; unsigned char DS1302SingleRead(unsigned char reg); void InitLCD1602(); void LCDshowstr(unsigned char x,unsigned char y,unsigned char p); void DS1302SingleWrite(unsigned char reg,unsigned char dat); void Configetimer0(unsigned char ms) { unsigned int tmp; tmp=65536-12000000ms/12/1000; T0RH=(unsigned char )(tmp>>8); T0RL=(unsigned char )tmp; TMOD&=0xF0; TMOD\|=0x01; TH0=T0RH; TL0=T0RL; ET0=1; TR0=1; } unsigned char DS1302BitRead() { unsigned char dat=0; unsigned char mask; for (mask=0;mask<8;mask++,dat<<1) { if (DS1302_IO!=0) {dat=dat\|0x01;} DS1302_CK=1; _nop_(); DS1302_CK=0; _nop_(); } return dat; } void DS1302BitWrite(unsigned char dat) { unsigned char mask; for (mask=0;mask<8;mask++,dat>>1) { if ((dat&0x01)!=0) {DS1302_IO=1;} else {DS1302_IO=0;} DS1302_CK=1; _nop_(); DS1302_CK=0; _nop_(); } } void InitDS1302() { unsigned char code InitTime[7]={0x00,0x30,0x09,0x18,0x03,0x06,0x13}; unsigned char i; DS1302_CK=0; DS1302_CE=0; i=DS1302SingleRead(0); if ((i&0x80)!=0) { DS1302SingleWrite(7,0x00); for(i=0;i<7;i++) { DS1302SingleWrite(i,InitTime[i]); } } } unsigned char DS1302SingleRead(unsigned char reg) { unsigned char dat; DS1302_IO=0xff; DS1302_CE=1; DS1302BitWrite((reg<<1)+0x81); dat=DS1302BitRead(); DS1302_CE=0; return dat; } void DS1302SingleWrite(unsigned char reg,unsigned char dat) { DS1302_CE=1; DS1302BitWrite((reg<<1)\|0x80); DS1302BitWrite(dat); DS1302_CE=0; } void main() { unsigned char Psec=0xaa; unsigned char Time[8]; unsigned char str[10]; unsigned char i; EA=1; ConfigeTimer0(2); InitLCD1602(); InitDS1302(); while(1) { if (flag200ms) { flag200ms=0; for (i=0;i<7;i++) { Time[i]=DS1302SingleRead(i); } if (Psec!=Time[0]) { str[0]='2'; str[1]='0'; str[2]=(Time[6]>>4)+'0'; str[3]=(Time[6]&0x0f)+'0'; str[4]='-'; str[5]=(Time[4]>>4)+'0'; str[6]=(Time[4]&0x0f)+'0'; str[7]='-'; str[8]=(Time[3]>>4)+'0'; str[9]=(Time[3]&0x0f)+'0'; str[10]=''; LCDshowstr(0,0,str); str[0]='w'; str[1]='e'; str[2]='e'; str[3]='k'; str[4]=(Time[5]&0x0f)+'0'; str[5]=''; LCDshowstr(11,0,str); str[0]=(Time[2]>>4)+'0'; str[1]=(Time[2]&0x0f)+'0'; str[2]=':'; str[3]=(Time[1]>>4)+'0'; str[4]=(Time[1]&0x0f)+'0'; str[5]=':'; str[6]=(Time[0]>>4)+'0'; str[7]=(Time[0]&0x0f)+'0'; str[8]=''; LCDshowstr(4,1,str); Psec=Time[0]; } } } } void interruptTimer0() interrupt 1 { static unsigned char tmp=0; TH0=T0RH; TL0=T0RL; tmp++; if (tmp>=100) { tmp=0; flag200ms=1; } } LCD1602.c ///这块调试没问题，上面不晓得哪里错了，求指教！ #include #define LCD1602_DB P0 it LCD1602_RS=P2^6; it LCD1602_RW=P2^5; *it LCD1602_E=P2^7; void LCDwriteReady(); void LCDshowstr(unsigned char x,unsigned char y,unsigned char p); /* 向LCD1602液晶写入一字节命令，cmd-待写入命令值 / void LCDwritecmd(unsigned char cnt) { LCDwriteReady(); LCD1602_RS=0; LCD1602_RW=0; LCD1602_DB=cnt; LCD1602_E=1; LCD1602_E=0; } / 设置显示RAM起始地址，亦即光标位置，(x,y)-对应屏幕上的字符坐标 / void LCDsetCursor(unsigned char x,unsigned char y) { unsigned char c; if (y==0) { c=0x00+x; }else { c=0x40+x; } LCDwritecmd(c\|0x80); } / 向LCD1602液晶写入一字节数据，dat-待写入数据值 / void LCDwritedat(unsigned char dat) { LCDwriteReady(); LCD1602_RS=1; LCD1602_RW=0; LCD1602_DB=dat; LCD1602_E=1; LCD1602_E=0; } / 在液晶上显示字符串，(x,y)-对应屏幕上的起始坐标， str-字符串指针，len-需显示的字符长度 / void LCDshowstr(unsigned char x,unsigned char y,unsigned char p) { LCDsetCursor(x,y); while(p!='') { LCDwritedat(p++); } } /* 等待液晶准备好 / void LCDwriteReady() { unsigned char cmd; LCD1602_RS=0; LCD1602_RW=1; do { LCD1602_E=1; LCD1602_DB=0xff; cmd=LCD1602_DB; }while(cmd&0x80); } / 初始化1602液晶 */ void InitLCD1602() { LCDwritecmd(0x38); LCDwritecmd(0x0c); LCDwritecmd(0x06); LCDwritecmd(0x01); } 0
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0 我给你做了吧

2017-3-19 19:56:38 评论举报 1^# 陈星

0 首先先确定显示程序正确，你的显示内容里除了20以外，还有其他的符号和英文，先确定这些现实正确，其他的就是确定ds1302的数据是否正确，以及ds1302的数据转换为显示数据是否正确

2017-3-20 14:41:35 评论举报 2^# 人中狼